Take milk in a large pot and bring it to the boil over high heat. Add sugar and stir. Turn the heat down to medium. Then add semolina and stir constantly until it gets thicker, for about 8-10 minutes. Turn the heat off. Add butter, coconut and vanilla sugar. Stir until the butter melts completely.

In a rectangular pyrex, layer 15 chocolate crackers side by side covering the bottom all over. Spoon the first half of pudding over. Repeat these for the other half of crackers and the pudding.Sprinkle walnut all over. Let it cool on the counter top then take it into the refrigerator.